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Thread: whats the best dump valve?

  1. #1
    s-line style's Avatar
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    whats the best dump valve?

    bought a dump valve off ebay a few weeks ago only a cheap one at £40 so may explain my problems anyway fitted it and car kept cutting out and running lumpy then a few days ago was looking at forge ones and they said there recirculating one needed fitting opposite way to standard bosch one so a thought that's how my ebay one should go on so went outsie fitted it opposite way to factory one and it worked gave off a mint chatter noise instead of the "tssshhh" noise which i expected anyway afte running perfectly for about an hour it made a busses airbrake noise and the car started cutting out and struggling to start anyone know why or experienced this?????? what I dont get is why it worked perfectly for over an hour then started playing up?? gutted coz the noise sounded mint

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    vivalacoulter's Avatar
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    Hmm, check it's still connected correctly and if so, remove and order a Forge one. Don't really want to be doing any damage.

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    s-line style's Avatar
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    a put original one back on straight after it wasn't running right what damage can be caused?? just don't get how it worked for an hour or so sounding mint then cutting ect a mate says the ecu may have took a while to pick up on something not being right then when it realised it wasn't by having a different one on it may have went into somekind of limp mode?? a know forge are mint but surely all brands of dump valves have pretty much the same internals and work the same? anyone got a forge one on that dumps? and runs properly?

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    bez101's Avatar
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    these cars dont like dump valves
    what DV did you use ?

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    s-line style's Avatar
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    just this one probs just a micky mouse one like but when working it was one of the best dump noises ive heard Split R dump valve for VAG 1.8T Adjustable BLACK VW Volkswagen Audi Seat Skoda | eBay so do correct forge ones run on the 190 brake 1.8t?

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    bez101's Avatar
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    thats a snide split R valve
    there crap
    you need the real forge split R valve
    they sound good but can cause lumpy idle and stalls
    like i said above these cars dont realy like this kinda valve.

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    I was reading this this thread earlier Must do modifications for K03/K03s AGU and AUM engines FWD cars The following information was taken from it:

    What dump valve for my pride and joy?


    STANDARD DVs ARE TOTALLY BOSS FOR 1.8t ENGINE ON THEIR STOCK TURBO.

    Just wanted to throw that out there right away, to save you guys some money. It is a common misconception and as somebody new to tuning you might not understand this, but in short the standard DV can safely and leak free hold more boost than our turbos can make whilst reacting quickly and efficiently, so unless yours is faulty there is no need to change it.

    If your car flutters and sounds like a rally car when you lift off, or does anything other than a crisp and clean "Kachooo" noise then your DV is toast. You can press up from the bottom port, and place your thumb over the top nipple and see if the valve itself drops. If it does, it is split and fit for the bin.

    The purpose of a dump valve is to rapidly remove pressure from the intake tract to stop the air from trying to return through the turbo and causing compressor stall.

    You can fit a Forge 007p dump valve, but if you do then please make sure it has the newly revised piston with the rubber o ring at the base of the piston.

    DO NOT EVEN THINK ABOUT FITTING A SPLIT R OR AN ATMOSPHERIC DUMP VALVE, THEY DO NOT WORK.

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    colinurquhart's Avatar
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    My wife would say my arse is a great dump valve the amount of wooshing it's done today!!
    DieselJake likes this.
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    2006 Audi A6 2.7 tdi Quattro S/line
    GONE BUT NEVER FOGOTTEN 2003 Audi S4 B6 Avant, LPG Converted, 19" BBS Speedlines, Stainless Creations Custom Exhaust.

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    s-line style's Avatar
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    cheers people am gonna send it back or see how far I can throw it its true they sound good but the car basically doesn't drive unless ya wanna keep starting it up after everytime its dumped. anyone got the 007 and does it make a good noise and run properly????

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    s-line style's Avatar
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    Quote Originally Posted by Paul_A4_UK View Post
    I was reading this this thread earlier Must do modifications for K03/K03s AGU and AUM engines FWD cars The following information was taken from it:

    What dump valve for my pride and joy?


    STANDARD DVs ARE TOTALLY BOSS FOR 1.8t ENGINE ON THEIR STOCK TURBO.

    Just wanted to throw that out there right away, to save you guys some money. It is a common misconception and as somebody new to tuning you might not understand this, but in short the standard DV can safely and leak free hold more boost than our turbos can make whilst reacting quickly and efficiently, so unless yours is faulty there is no need to change it.

    If your car flutters and sounds like a rally car when you lift off, or does anything other than a crisp and clean "Kachooo" noise then your DV is toast. You can press up from the bottom port, and place your thumb over the top nipple and see if the valve itself drops. If it does, it is split and fit for the bin.

    The purpose of a dump valve is to rapidly remove pressure from the intake tract to stop the air from trying to return through the turbo and causing compressor stall.

    You can fit a Forge 007p dump valve, but if you do then please make sure it has the newly revised piston with the rubber o ring at the base of the piston.

    DO NOT EVEN THINK ABOUT FITTING A SPLIT R OR AN ATMOSPHERIC DUMP VALVE, THEY DO NOT WORK.
    cheers mate am not new to tuning av had every car av had modified just never had a turbod audi so not sure on what dump valve to go for av heard a bit about the 007 so am gonna go for that cheers for info

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    Andie0's Avatar
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    008 is good its what i got and is soo easy to service
    2004 audi a4 s line 1.8t bex 242bhp dynoed
    Mods: bsr optiflow kit, forge diverter valve, custom turbo back exhaust, custom 200 cell cat, DGR coilovers, forge tip, s3/tt 386cc injectors, boost gauge, revo stage 2, 12mm rear spacers, rear window extension spoiler
    To come: big brake setup... Getting there!!
    boats and hoesss, boats and hoesss

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    Quote Originally Posted by s-line style View Post
    so went outsie fitted it opposite way to factory one and it worked gave off a mint chatter noise instead of the "tssshhh" noise
    The noise you heard is turbo stall basically the throttle shutting and the all the air in the intake bouncing off the turbine blades. To be honest even though this is meant to be the end of the world according to every forum you go on, Cossies never ran dump valves and all the 200sx's i used to be involved with removed the standard valves so that you'd get this noise. So you thinking it's working was actually the valve been inopertive as you had it backwards until im guessing the diapram split hence you running issues.

    I prefer the turbo stall noise but in practice you can see why it'd be bad for the turbo but in reality i dont think it makes much difference and it's a proper group b rally man noise in my opinion

    At the moment i've got a induction kit fitted with a new 710n Valve (search ebay) and i get a very loud tsssssssssssssssh if thats what your looking for and for not much money thats perfectly reliable.

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    pauldazzle's Avatar
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    VAG 1.8T's will not run correctly with a dump to atmosphere DV, they require a recirc valve or will throw a code & run badly.
    Forge 007p can be fitted both ways, but will be a little louder mounted on it's side. There is no performance gain over using the OEM 710N valve, but the Forge valve seal rarely fails.
    A4 Avant B6 1.9 TDI 130 Sport (6) Moro Pearl Blue, GMBH S Line Kit, Decat, 165bhp remap, EGR delete, K&N panel, Dunlop SP Sport Max, Full Leather, Cruise Control, Full DIS, Bose, Audi phone prep, Cooled Glove Box, Rear privacy glass, Rear parking assist.
    2003 Seat Ibiza 1.2 TSI FR in Lima green.

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    s-line style's Avatar
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    this is the one I got FORGE SPLIT R DUMP VALVE (DIVERTER VALVE) - FITS VW AUDI SEAT SKODA 1.8T - 007p | eBay this should be fine shouldn't it some say yes some say know ya hear of loads of people running these for years with no problems so do some say they don't run..

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    Quote Originally Posted by _adam_ View Post
    The noise you heard is turbo stall basically the throttle shutting and the all the air in the intake bouncing off the turbine blades. To be honest even though this is meant to be the end of the world according to every forum you go on, Cossies never ran dump valves and all the 200sx's i used to be involved with removed the standard valves so that you'd get this noise. So you thinking it's working was actually the valve been inopertive as you had it backwards until im guessing the diapram split hence you running issues.

    I prefer the turbo stall noise but in practice you can see why it'd be bad for the turbo but in reality i dont think it makes much difference and it's a proper group b rally man noise in my opinion

    At the moment i've got a induction kit fitted with a new 710n Valve (search ebay) and i get a very loud tsssssssssssssssh if thats what your looking for and for not much money thats perfectly reliable.
    forge state on there website that it must be fit opposite way to bosch one it was the first time I fit the aftermarket one when I had bother by doing a direct replacement of standard one then read what forge stated and it worked mint then the running issues occurred which a lot of people have said is its because it was basically a cheap dv

  17. #16
    pauldazzle's Avatar
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    Quote Originally Posted by s-line style View Post
    forge state on there website that it must be fit opposite way to bosch one it was the first time I fit the aftermarket one when I had bother by doing a direct replacement of standard one then read what forge stated and it worked mint then the running issues occurred which a lot of people have said is its because it was basically a cheap dv
    You can fit the 007 either way. I've done VCDS logs with it in both positions & there was no difference in boost readings.
    Cheap ebay jobbies often have poor seals as I found to my cost once in the past. Buy cheap, buy twice!
    A4 Avant B6 1.9 TDI 130 Sport (6) Moro Pearl Blue, GMBH S Line Kit, Decat, 165bhp remap, EGR delete, K&N panel, Dunlop SP Sport Max, Full Leather, Cruise Control, Full DIS, Bose, Audi phone prep, Cooled Glove Box, Rear privacy glass, Rear parking assist.
    2003 Seat Ibiza 1.2 TSI FR in Lima green.

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    s-line style's Avatar
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    Quote Originally Posted by pauldazzle View Post
    You can fit the 007 either way. I've done VCDS logs with it in both positions & there was no difference in boost readings.
    Cheap ebay jobbies often have poor seals as I found to my cost once in the past. Buy cheap, buy twice!
    what do you mean fit either way on the forge instructions it says it will only work if fitted opposite way to bosch one

  19. #18
    pauldazzle's Avatar
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    Forge used to state that the 007 could be mounted on it's side as opposed to upright like the OEM DV if more noise was required.
    If they are now saying it must be mounted on it's side only to work properly they must have changed the design.
    A4 Avant B6 1.9 TDI 130 Sport (6) Moro Pearl Blue, GMBH S Line Kit, Decat, 165bhp remap, EGR delete, K&N panel, Dunlop SP Sport Max, Full Leather, Cruise Control, Full DIS, Bose, Audi phone prep, Cooled Glove Box, Rear privacy glass, Rear parking assist.
    2003 Seat Ibiza 1.2 TSI FR in Lima green.

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    Quote Originally Posted by pauldazzle View Post
    Forge used to state that the 007 could be mounted on it's side as opposed to upright like the OEM DV if more noise was required.
    If they are now saying it must be mounted on it's side only to work properly they must have changed the design.
    ah right a think it only goes one way if its set up to correct pipes my trumpet is facing road

  21. #20
    pauldazzle's Avatar
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    Quote Originally Posted by s-line style View Post
    ah right a think it only goes one way if its set up to correct pipes my trumpet is facing road
    Ok I realise now that you have a BOV & not a Forge 007p which is a recirc valve & can be fitted up or side ways.
    I strongly advise you to get a recirc valve fitted VAG 1.8T's do not like BOV's, & will throw codes & run like sh*t.
    A4 Avant B6 1.9 TDI 130 Sport (6) Moro Pearl Blue, GMBH S Line Kit, Decat, 165bhp remap, EGR delete, K&N panel, Dunlop SP Sport Max, Full Leather, Cruise Control, Full DIS, Bose, Audi phone prep, Cooled Glove Box, Rear privacy glass, Rear parking assist.
    2003 Seat Ibiza 1.2 TSI FR in Lima green.

  22. #21
    Andie0's Avatar
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    008 are decent and pretty easy to get there is a seller on ebay that says make me an offer, he will take 110 delievered! Comes with spring kit and can be fitted either way also and looks the shiz easier to service too
    2004 audi a4 s line 1.8t bex 242bhp dynoed
    Mods: bsr optiflow kit, forge diverter valve, custom turbo back exhaust, custom 200 cell cat, DGR coilovers, forge tip, s3/tt 386cc injectors, boost gauge, revo stage 2, 12mm rear spacers, rear window extension spoiler
    To come: big brake setup... Getting there!!
    boats and hoesss, boats and hoesss

 

 

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